개의 bordetella bronchiseptica에 關한 硏究

Studies on bordetella bronchiseptica in canine

A study was conducted to investigate the incidence of respiratory diseases in dogs, distribution of organism according to the age, antibody response of infected dogs, antimicrobial susceptibility of isolated strains and some properties of the isolated organisms. The results obtained were summarized as fellows: The prevalence of respiratory diseases infection on 84 herds in 3 regions (Seoul, Gyeonggi, Honam) occurred 19.0%(186) of 980 dogs examined. Of the 117 Bordetella bronchiseptica (B. bronchiseptica) isolated. 71 strains were isolated from 186 nasal swabs and 46 strains from 110 lungs. The distribution of B. bronchiseptica according to the clinical signs to infected dogs, but were ranged 1×10¹―1×10⁴ from case of dogs with chronic signs and 1×10³―1×10⁸ from case of doge with acute signs. The incidence of isolation B. bronchiseptica according to the age of dogs were isolated 28.8%(15 samples) from 52 samples in case of 1-5 month old, 50.5% (51 samples) from 101 samples in case of 6-10 month old and 15.2% (5 samples) from 35 samples in case of up to 11 month old. The Positive antibody titers against B. bronchiseptica in case of 1-5 month old, 6-10 month old and up to 11 month old appeared 35 (50.0%) of 70 dogs, 56 (62.2%) of 90 dogs and 31 (82.5%) of 40 dogs examined, respectively. And correlation coefficient between antibody response B. brochiseptica in dogs was r=+0.989 (p＜0.01) All the strains (117) tested were susceptible to coloramphenicol (96.6%), amikacin and nalidixic acid (76.1%), kanamycin (73-5%), but resistant to other antibiotic drugs.